Pin Tumbler
The pin tumbler lock is the most common mechanical locking mechanism in North America for residential deadbolts, commercial mortise cylinders, and padlock housings.
Wafer Locks
Wafer tumbler locks utilize flat spring-loaded metal plates (wafers) rather than round pins. They are common in low-to-medium security applications due to their compact form factor and cost efficiency.
Tubular Locks
Tubular locks (also known as ace locks or radial pin tumbler locks) arrange their pin chambers in a circular pattern around a central solid post, matching the circular key format.